Ag Nanocrystals Intercalated Muscovite Mesocrystal for Large-Scale 3D SERS

IF 9.1 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Chia-Yun Sung, Yu-Hao Tu, Le Thi Quynh, Ching-Min Su, Hung-Yi Wu, Lu-Hsing Chen, Kuo-Ping Chen, Wan-Zhen Hsieh, Ching-Yu Chiang, Wen-Hui Sophia Cheng* and Ying-Hao Chu*, 
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引用次数: 0

Abstract

Plasmonic nanocrystals represent one of the most fascinating emerging research fields and hold great promise for a wide range of new applications, including surface-enhanced Raman spectroscopy (SERS) and plasmon-related devices. Here, we present a mesocrystal consisting of 3D Ag nanocrystals (NCs) with the same orientation intercalated in a 2D muscovite crystal via a two-step hydrothermal process for a novel SERS platform. The fabricated Ag NCs/mica mesocrystal possesses high crystallinity, uniform size, and extensive distribution to benefit the SERS-active plasmon area and strong plasmon resonance in the visible spectral range. Furthermore, the SERS application potential was demonstrated through Raman spectra of crystal violet and rhodamine 6G molecules on a Ag NCs/mica mesocrystal with detection limits as low as 10–6 and 10–7 M. This work presents a 3D platform with large-scale uniform hot spots and cost-effectiveness for SERS applications, laying a solid foundation for further investigations into 3D plasmonic nanostructures.

银纳米晶嵌入白云母介晶用于大尺度三维SERS。
等离子体纳米晶体是最令人着迷的新兴研究领域之一,在包括表面增强拉曼光谱(SERS)和等离子体相关器件在内的广泛新应用中具有很大的前景。在这里,我们提出了一种由具有相同取向的三维银纳米晶体(NCs)组成的介晶,通过两步水热工艺嵌入到二维白云母晶体中,用于新型SERS平台。制备的银纳米/云母介晶结晶度高,尺寸均匀,分布广泛,有利于sers活性等离子体区域和可见光谱范围内强的等离子体共振。此外,通过银纳米/云母介晶上结晶紫和罗丹明6G分子的拉曼光谱,检测限低至10-6和10-7 m,证明了SERS的应用潜力。这项工作为SERS应用提供了一个具有大规模均匀热点和成本效益的3D平台,为进一步研究三维等离子体纳米结构奠定了坚实的基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Nano Letters
Nano Letters 工程技术-材料科学:综合
CiteScore
16.80
自引率
2.80%
发文量
1182
审稿时长
1.4 months
期刊介绍: Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.
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